If we're talking the FINAL "Final" OverTheAir song

, then my money is on "I Still Believe" by Frank Turner, which has been the official WFNX anthem and their battlecry since the sale was announced.
I still think it'll be "Let's Go To Bed". I was driving home from work around 11pm and pulled up in my front of my house and what happened to be playing in the automated wfnx.com plug stream? "Let's Go To Bed."
Though, if I had my way and could sneak into the 2nd floor of 25 Exchange St in downtown Lynn and get my hands on the NexGen, this is how I'd set up the final hours in this automated stream:
Jeff Buckley - "Yard of Blonde Girls" (Song was mostly written by Audrey Clark and Lori Kramer who are Julie Kramer's sisters about the suicide of one their friends)
Jeff Buckley - "Last Goodbye"
David Bowie - "Changes"
The Ramones - "We Want the Airwaves"
Parlour Bells - "Airwaves" (Song by local Boston band about the demise of WFNX)
Frank Turner - "I Still Believe"
The Cure - "Let's Go To Bed" (Twas the first song and should be the last song)
Followed by some stunting from the nearly 30 7-1/2" reels of celebrity IDs, final station ID under the WFNX calls, cut to static and on comes WHBA.